This Sunday night, lucky area music lovers will be singing “Joy to the World.”

Music icons and Grammy-award winning artists Three Dog Night will be performing at the Zeiterion Theater Sunday night.

Since forming in 1969, these music legends have stuck to the same lineup and same eclectic mix that have helped them land spots not only on rock charts, but country, easy listening and pop charts.

To this day, people of all generations belt out the chorus to the feel-good “Joy to the World.” No. 1 hits “Mama Told me Not to Come” and “Black and White” have also spanned generations.

Recently, vocalist Danny Hutton during an interview talked about the formula behind the band’s continued success, and how music-lovers will be treated to something special on Sunday night.

Hutton, 70, grew up in a household where everyone played a musical instrument, and exposed him to all styles of music, from Irish folk, country to rock. This upbringing not only had a profound influence on Hutton, but it has also impacted the rest of the band.

He used the word “eclectic” to describe the band’s style, even mentioning that the band might have stretched its bounds recently, playing with the London Philharmonic Orchestra.

Hutton also emphasized that consistency has always been a strength for the ‘60s icons.

He said they have stuck to the same lineup and people often marvel over how much their live performances sound like their recordings.

The band this Sunday will unroll Cory Wells and Danny Hutton on lead vocals, original keyboardist Jimmy Greenspoon and guitarist Michael Allsup, Paul Kingery (bass and vocals) and Pat Bautz (drums).

Hutton also said this performance will also represent homecoming of sorts. He was born in Ireland but moved to Boston as a child. In fact, he still has friends and relatives in Scituate.

For more information at this show at the Zeiterion Performing Arts Center, 684 Purchase St., New Bedford, check out, www.zeiterion.org or call 508-997-5664.